◘ Skin Anti-Aging
◘ Skin Free Radical Damage
◘ Skin Sun Damage
◘ Premature Skin Aging
◘ Skin Anti-Aging Products
◘ Anti-Aging Diet
Titanium / Zinc Sunscreen
Titanium / Zinc Sunscreen:
(Under our Apresia label) For most skin types. Light and non-oily to
function as an optimal physical sunscreen and light moisturizer. Full UVA
and UVB protection. SPF 30. Chemical free with safe and effective titanium
dioxide and zinc oxide protection, suggested by most dermatologists. pH 3.9
Short wave lengths of light (UVB) tend to do most of its damage in the epidermis (the outer layers of the skin), while the longer wave lengths of light (UVA) produce damage in the dermis (the inner layers containing collagen and structural elements of the skin). When the energy of these small particles of light strike a component of skin (where the light wave stops), the energy released alters the chemistry of that component and damages the component. This is the initial damage. These chemical changes also produce free radicals and these radicals continue on to cause additional damage (secondary damage) to other skin components. This concept of a chain reaction of damage is explained in the Free Radical Damage page in the Acne and Skin Damage section to the left. Unprotected sun exposure produces double levels of damage; the initial energy damage and the secondary free radical damage.
In time photodamage and subsequent free radical damage cause collagen to become broken and dysfunctional. Melanocyte (pigment) cells become dysfunctional and produce volumes of pigment that result in age spots and other forms of pigment. Fibroblast cells become dysfunctional and do not produce new collagen. Macrophage cells fail to perform adequate skin immune functions, etc. In this manner unprotected sunlight causes the damage we identify as aging.
At one time as much as 90% of the visible damage in skin aging was thought to be caused by sun damage. With better public education and sunscreens this form of damage is on the decrease. Nonetheless, it is estimated that 90% of sun damage is the result of unplanned or casual sun exposures when people may not have active photoprotection. This might include riding in car, walking outdoors briefly or stopping to talk with friends, without a sunscreen. Multiple short and unprotected exposures to the sun may actually become more damaging over the course of a lifetime than a smaller number of lengthy exposures resulting in sunburn.
Chemical sunscreens protect the skin by absorbing the light particles (photons). When this energy is absorbed, the molecules of the sunscreen are destroyed, rather than a skin component. This still results in chemical reactions and the process generates free radicals that produce the same type of secondary free radical damage that unprotected sun exposure produces. Subsequently chemical sunscreens are not the most complete or effective form of sun protection. They prevent a larger degree of the initial sun damage but allow secondary free radical damage, which adds to the speed of the skin aging process.
Physical sunscreens such as titanium dioxide and zinc oxide work by reflecting the photons of light up and out of the skin so there is no absorption of energy. There is no chemical reaction and no free radicals are produced. Unlike chemical screens, the physical screen type of photoprotection produces no free radicals and no secondary skin damage. This is why dermatologists have recommended the combination of titanium dioxide and zinc oxide as superior sun protection. Apresia's Titanium / Zinc Sunscreen is a physical (non-chemical) screen using titanium dioxide and zinc oxide. It provides UVA and UVB protection with an SPF of 30. Dayspa Magazine selected it as their choice of the best sunscreen on the market, because of its protective qualities and its feel and application ease.
Since NO sunscreen is capable of absorbing or reflecting all of the light photons that strike the skin, protection from secondary free radical activity must always be considered. Apresia's sunscreen contains exceptionally powerful antioxidants to reduce free radical activities and the potential of secondary damage. These antioxidants include grape extract, vitamin E, green tea, etc..
A sunscreen is part of an anti-aging strategy. Physical sunscreens (titanium dioxide and zinc oxide) provide much better anti-aging benefits than chemical sunscreens because physical screens eliminate much of the secondary free radical damage that can result from sun exposure. The addition of antioxidants into the sunscreen formula reduces additional potential free radical damage. Physical sunscreens fortified with antioxidants are a highly effective anti-aging strategy and tool.
© 2006 Apresia / Skintactix